| PublishDate | 2020-01 | http://fasb.org/us-gaap/role/tin/resource |
| Source | Taxonomy Implementation Guide | http://fasb.org/us-gaap/role/tin/resource |
| SourceName | Notional Amount Disclosures | http://fasb.org/us-gaap/role/tin/resource |
| inlineURI | https://xbrl.fasb.org/ix/?doc=../impdocs/NL_TIG/inline-f2017notionalxexhib.htm | http://fasb.org/us-gaap/role/tin/resource |
| pdfURI | https://www.fasb.org/notionalamounts_2017 | http://fasb.org/us-gaap/role/tin/resource |
| elementCreationTaxonomyVersion | 2013 | http://fasb.org/us-gaap/role/tin/taxonomyImplementationNote |